MULTI-PORT SEMICONDUCTOR MEMORY DEVICE HAVING VARIABLE ACCESS PATH AND METHOD THEREFORE

摘要

A multi-port semiconductor memory device having a variable access path and a method thereof are provided to enable efficient usage of memory regions, by variably controlling an access path between input/output ports and memory regions. A multi-port semiconductor memory device comprises a plurality of different input/output ports and a memory array divided into a plurality of different memory regions. A selection control part(400a) variably controls an access path between the memory regions and the input/output ports, in order for each memory region to be accessed through at least one input/output port. The access path control of the selection control part is performed in response to external command signals.